<template>
  <el-dialog title="员工导入" :visible.sync="ImportExcelVisible" width="35%" @close="close">
    <el-row type="flex" justify="center">
      <div class="upload-excel">
        <!-- 上传文件的input框，但是不能让用户看见 -->
        <input
          ref="inputName"
          class="excel-upload-input"
          type="file"
          accept=".xlsx, .xls"
          @change="selectedFile"
        />
        <div class="drop">
          <i class="el-icon-upload" />
          <el-button type="text" @click="download">下载导入模板</el-button>
          <span>
            将文件拖到此处或
            <el-button type="text" @click="selectFile">点击上传</el-button>
          </span>
        </div>
      </div>
    </el-row>
    <el-row type="flex" justify="end">
      <!-- update:props属性名，值 直接修改 .sync修饰符的属性值 -->
      <el-button size="mini" type="primary" @click="ImportExcelVisible=false">取消</el-button>
      <el-button size="mini" type="primary" @click="uploadFn">上传</el-button>
    </el-row>
  </el-dialog>
</template>

<script>
const formData = new FormData()
import { getEmployeeModuleExcel, postEmployeeExcel } from '@/api/employee'
import { saveAs } from 'file-saver'
export default {
  name: 'ImportExcel',
  components: {},
  props: {},
  data() {
    return {
      ImportExcelVisible: false
    }
  },
  computed: {},
  watch: {},
  created() {},
  mounted() {},
  methods: {
    open() {
      this.ImportExcelVisible = true
    },
    close() {
      this.ImportExcelVisible = false
    },
    selectFile() {
      this.$refs.inputName.click()
    },
    selectedFile(e) {
      console.log(e)
      const file = e.target.files[0]
      formData.append('file', file)
      // 把formData发送给服务器
    },
    async download() {
      const res = await getEmployeeModuleExcel()
      console.log(res)
      saveAs(res, '员工列表.xlsx')
    },
    // 上传
    async uploadFn() {
      // 上传文件
      await postEmployeeExcel(formData)
      // 提示上传成功
      this.$message.success('文件上传成功')
      // 成功后刷新数据
      this.$emit('success')
      // 关闭窗口
      this.ImportExcelVisible = false
    }
  }
}
</script>

<style lang="scss" scoped>
.upload-excel {
  display: flex;
  justify-content: center;
  margin: 20px;
  width: 360px;
  height: 180px;
  align-items: center;
  color: #697086;
  .excel-upload-input {
    display: none;
    z-index: -9999;
  }
  .btn-upload,
  .drop {
    border: 1px dashed #dcdfe6;
    width: 100%;
    height: 100%;
    text-align: center;
    line-height: 160px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .drop {
    line-height: 40px;
    color: #bbb;
    i {
      font-size: 60px;
      display: block;
      color: #c0c4cc;
    }
  }
}
</style>
